Adjustable scaffolding



Nov. 18, 1930. H. BALL 1,781,911

ADJ US TABLE SGAFFOLDI N G Filed Dec. 4. 1929 INVENTOB howA no .Bnu.

Patented Nov. 18, 1930 UNITED STATES PATENTOFFICEJ Application filed December4, 1929. Serial No. 411,486.

This invention relates to an adjustable tends beyond the head so that the latch can scaffolding, particularly useful as a plaster be upwardly swung to disengage the post ers or lathers scaffolding, or the like. 1 when it isdesired toadjust said-post.

An object of my invention is to provide a v A pair of-legs 99, 10 1 are pivotally novel adjustable scaffolding which can be secured to the flanges 2-3 respectively, and quickly and easily adjusted to the required these: legs are preferably made of angle height, and which is automatically held in members,an upperflme'mbe'r 11,"and a lower the raised position. member 12.",The lowermember is adjustable Another object is to provide an adjustable on the upper member by means ofa bolt 13 1o scaffolding of the character stated, the head which-'fitsin holes 14 in the upper member. 7

of which can be adjusted to accommodate As previously stated,the upper members 11 various widths of boards. are all pivotallyiseciired to the flangesQor Still anotherobject is to provide a scaffold- 3, and the legs are held.againstextremelout ing which is simple in construction and inex- Ward movement by the f following simple 15 pensive to manufacture. means :Theupper end done of the "flanges 65 Other objects, advantages and featuresof of the members llis bent around-the flanges invention may appear from the accompany- 201 3 as shown at 15. The pivot" 16 of the ing drawing, the subjoined detailed dQZCllP- legs is'adjacent the lower edge; of the' flanges tion and the appended claims. and therefore-thecurved section15'willbear In the drawingtightly against the" outer edge of the flange 70 Figure 1 is a side elevation of my'seaffoldtolimit extreme outward movement of the ing. legsJf Of course,.t he legs can be folded in} Figure 2 is a plan view with the adjustable 'wardly to. make a more compact scaffolding rest removed. I when it is not in use. e 1 A Figure 3 is a transverse sectional view of 6A restQ17 is provided onthe top of the 75 o the head i i P t 5 an h B can accommodate a Figure dis a fragmentary end view of the board either edgewi se or flat. A pair of, arms rest. 18-19 are pivotally secured to the top of Figure 5 is a fragmentary side view of the the post "by means of a set screw 20 which. i r rest with the arms extended.horizontally. extends through the arms and throughthe 89 Figure 6 is an enlarged fragmentary side top of the post. To further secure the arms View of. the head showing the leg mounting. against any possible movement, I provide a Referring more particularly to the draw-; plurality o'f-pins 21 which extend through ing, the numeral lindi'cates a head which 1s both of the arms an'd'through the post. The v i preferably a metal casting provided with arms .1819are each formedinto anenf8 5 flanges 2-3, one on either side thereof, and: larged disc '22 on the. lower end thereof, these flanges are flared outwardly towards whichidiscfits-against the upper flattened. V the bottom of the head so that the legs which portion of the rod. The upper ends of the are attached thereto will spread outat the arms 185-19 are'ea'ch bentupwardly at a 40 base, as will be further described. vertical slight angle as at 23-24 respectively so that 5, hole 4' extendsthrough the center of the head when placed. in position to receive. a flat i i 1, and a post 5 extends through; this hole. board, said board will not slip off of the ends The post is moved vertically to suit any parof the arms. The post 5 may beknurled or.

ficular diti nd is held in position by threaded with a shallow thread so thatthe means of a latch 6. The latch extends latch 6 can. more'efl'ectively grip the same,

through av slot 7 cut in the side of the head 1, and hold it against movement. i and is pivoted on a pin 8. The innerend Having described my invention, I claim: of the latch is knurled ortoothed so that it 1. An adjustable scafiolding comprising'a will tightly grip the post 5, and hold the post head formed as a metal casting, flanges on in position. The outer end of the latch exboth sides of the head, pairs of leg d d.-

ing from each side of the head, said legs being formed of structural angles, means pivotally securing the legs to the flanges, a post extending through the head and a latch pivotally mounted in the head, the inner end of said latch engaging the post, and a rest on the upper end of said post. I

2. An adjustable scafi'oldingcoinprising a head formed as a metal casting, flanges on both sides 01": the head, pairs of legsvdepending from each side of the head, said legs be c ing formed of structural angles, :Ineans pivotally securing the legsto the flanges,-a post extending through theheadand a latch" pivotally mounted in the head, the inner end of 7 said latch engaging the post, and a rest on the upper end of said post, said rest comprising a pair of :LTIDS and means ad -iistahly securing said arms to the upper endof the,

post. v

'3. An adjustahle scafloldingcomprising a head-formed as a metal casting, flanges on both sides of the head, pairs of legs depend ingfroin each side of the head, said legs be- Mg formedof structural angles, the upper end of'one of the flanges of each of saidlegs being wraptaround saidifirst named flanges, a pin extending through .the legs and through the flanges thereby,pivotallyniounting the legsvto thehead, said head having a slot extending through, one side thereot, a latch 'pivotally niounted in said slot, a post extending through the head, the,.inner end 7 ofsaid latch engagingsaid post whereby said post is held against downward movement, and a rest on top of said post.

4. An adjustable scaffolding-comprising a head fOIInCl as a metal castingffianges on both sides of the head,.pairs oflegs depen ding from each side of the head, said legs being formedof structural angles, the upper end of one of the flanges of each of saidlegs being wrapt around said firstnained flanges,

' a pin extending through the legs and through the flanges thereby pivotally inounting the legs to the head, said head having a. slot extending through one side thereof, a

latch pivotally mounted in said slot, post 7 extending through'the; head, the inner end of said latch engaging said post whereby said post is held against downward movement, and a rest on top of the said post, sa id rest comprising a pair ot arms, a set screw extending through both of the arms and through the rod and pins extending through the post and arms whereby the arms are. ad-

justably secured to the post. a

In testimony whereof, Iaflix iny signature.

, HOWARD BALL. 

